??????2???????28?

??: ????
2025-02-22 01:25:10

?2?21?? (???????????????? ?)???????????21??????,????2?28??,????????

?,???????????,????????????31.1?????,?????“?+???”??????,??,???????????,??????????17.8???

?2???28?????????? ????

2024?12???????????????????11??,??,??????????????,????????????????????,?,?,??33??/???????????????,?13.3?,?,??0.6??/?????????

????JT/T489-2019??????1?????4??????1?1.5?2?3,1????????6?????????1?2.1?3.16?3.75?3.86?4.09,???????????????????,???6?,???????????????,?????0.17?????????????????

???????,????30?????,????,???????????“????????????????????????????????????”??????

?????,????“??????????????????”??,?,?????????????2??,???2?2???(?????????),?????????????3.32??????????

?????,?????????????????????“???????”?????????,????????,??????150?????????(??????????????????)

?????????????????????????:?????

??

???:????
??:???????????,??????????,??????????????
???? ??

Copyright ? 2023 Sohu All Rights Reserved

???? ????